I found this site that says it is offering the APK for that app. Not sure if you have Outside sources checked or not, but if you try to install this and you don't it will ask you to turn it on.
Here is the web page, the install is to the far right. There may be other sources for this APK but this was the first one I found. Also not sure why you wouldn't have it unless you have disabled it while disabling apps or disabled one that controls this. You know you always get that warning that disabling this app may cause other apps to stop working or what not. You will have to navigate to the site from your device and open there since you can't connect to a pc to transfer files.